City vs city
Bull Run vs Manassas, VA
Manassas currently scores 7 points higher overall than Bull Run, with the largest gap in hail.
Use this comparison for relocation decisions, insurance shopping, and hazard-prioritized mitigation planning.
Hazard breakdown
Scores describe each city’s reference grid tile, not every property. A missing model is unavailable, not zero risk. Air quality uses an ingested EPA AirNow snapshot and may not reflect current conditions; other factors describe baseline exposure. The overall score blends different hazards and is not a probability of damage. Read the scoring methodology and sources.
Overall
Bull Run: 33/100 · Manassas: 40/100
Manassas is 7 points higher.
Flood
Bull Run: 30/100 · Manassas: 26/100
Bull Run is 4 points higher.
Bull Run: FEMA NFHL flood zones: 9 features intersect this tile.
Manassas: FEMA NFHL flood zones: 6 features intersect this tile.
Wind
Bull Run: 20/100 · Manassas: 20/100
No gap.
Bull Run: Wind exposure derived from ingested design wind / climatology tiles.
Manassas: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Bull Run: 39/100 · Manassas: 40/100
Manassas is 1 points higher.
Bull Run: Lightning exposure derived from ingested climatology tiles.
Manassas: Lightning exposure derived from ingested climatology tiles.
Tornado
Bull Run: 12/100 · Manassas: 8/100
Bull Run is 4 points higher.
Bull Run: Tornado risk derived from NOAA SPC historical reports.
Manassas: Tornado risk derived from NOAA SPC historical reports.
Hail
Bull Run: 48/100 · Manassas: 100/100
Manassas is 52 points higher.
Bull Run: Hail risk derived from NOAA SPC historical reports.
Manassas: Hail risk derived from NOAA SPC historical reports.
Storm surge
Bull Run: Unavailable · Manassas: Unavailable
A score difference cannot be calculated without both sources.
Bull Run: Storm surge model is not available for this location yet.
Manassas: Storm surge model is not available for this location yet.
Wildfire
Bull Run: 44/100 · Manassas: 43/100
Bull Run is 1 points higher.
Bull Run: Wildfire exposure derived from ingested fire potential tiles.
Manassas: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Bull Run: 41/100 · Manassas: 41/100
No gap.
Bull Run: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Manassas: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.